Schools that serve healthier food, offer nutrition education and reward students for good eating habits can make a major in preventing childhood obesity.
| A．mistake | B．sense | C．impression | D．difference |
------Did the policeman let you in?
------No, ________ I told him who I was．
| A．Unless | B．Once | C．as though | D．even if |
I called him many times, but I didn’t get through, maybe his mum _on the phone all the time．
| A．talked | B．was talking | C．has talked | D．had talked |
-----Shall I give you a ride as you live so far away？
------- Thank you． ____________．
| A．Of course you can | B．If you like |
| C．It couldn’t be better | D．It’s up to you |
What if we meet a situation ______ we won’t be able to deal with?
| A．where | B．in which | C．when | D．that |
The country life he was used to ____ greatly in the past decade．
| A．change | B．has changed | C．changing | D．have changed |